High density nonwoven filter media

Details High density nonwoven filter media High density nonwoven filter media

1997-06-20

1999-01-05

Reifsnyder, David A.

Liquid purification or separation

Filter

Material

210503, 210508, 2105101, 428373, 428374, 442224, 442361, 442362, 442364, 442401, B01D 3916

Patent

active

058557849

ABSTRACT:
The invention provides a sheet filter medium having autogenously bonded uncrimped conjugate fibers which contain a polyolefin and another thermoplastic polymer that have different melting points. The filter medium has a density between about 0.07 g/cm.sup.3 and about 0.2 g/cm.sup.3. The invention additionally provides a three-dimensionally thermoformed filter medium that has a density between about 0.07 g/cm.sup.3 and about 0.5 g/cm.sup.3.

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